ICS - Local IP + ICS config Loosed after Internet disconnect


G

Guest

Hi there,

Escuse my poor english first.
I'll try to explain my problem.

Since I bought a notebook, i decided to use my home pc (ATX tower with WinXP
HE) as a gateway to the internet.

I set-up all ICS parameters. (ICS autonegociate local IP adress to
192.168.0.1)
I set-up all neede IP parameters on the notebook...
I connect the home Pc to the Internet, all works fine...

But when i disconnect my home pc (=gateway) from the internet, both local ip
parameters and ICS settings are reset.

After that, no available gateway on the network, and no possible
communications to the home pc because it tries to autodetermine IP address
from a DHCP server (and i don't want to install some DHCP server)

This problem only appears on Internet disconnect (from home pc & from
notebook).

Tired to configure IP and ICS more than 3 times a day, I made a REG file
which auto-(re)configure IP parameters, but ICS is not (re)enabled (because I
don't know what key must be changed)...

Do you know where does this problem come from, and how to solve it ?
Or do you now how REG key I must change to (re)enable ICS ?

Thanks in advance.
 
Ad

Advertisements

C

Chuck

Hi there,

Escuse my poor english first.
I'll try to explain my problem.

Since I bought a notebook, i decided to use my home pc (ATX tower with WinXP
HE) as a gateway to the internet.

I set-up all ICS parameters. (ICS autonegociate local IP adress to
192.168.0.1)
I set-up all neede IP parameters on the notebook...
I connect the home Pc to the Internet, all works fine...

But when i disconnect my home pc (=gateway) from the internet, both local ip
parameters and ICS settings are reset.

After that, no available gateway on the network, and no possible
communications to the home pc because it tries to autodetermine IP address
from a DHCP server (and i don't want to install some DHCP server)

This problem only appears on Internet disconnect (from home pc & from
notebook).

Tired to configure IP and ICS more than 3 times a day, I made a REG file
which auto-(re)configure IP parameters, but ICS is not (re)enabled (because I
don't know what key must be changed)...

Do you know where does this problem come from, and how to solve it ?
Or do you now how REG key I must change to (re)enable ICS ?

Thanks in advance.

Nicolas,

If you want to know what registry keys are being changed when you activate ICS,
get Process Explorer and Regmon (both free) from SysInternals.
<http://www.sysinternals.com/ntw2k/freeware/procexp.shtml>
<http://www.sysinternals.com/ntw2k/source/regmon.shtml>

# Start Process Explorer.
# Start the ICS setup process. Use Process Explorer to tell you the PID of the
ICS setup process.
# Start Regmon. Set Regmon to filter on the PID of the ICS setup process.
# Execute the ICS setup process. Look at the output from Regmon.
# Once you identify the registry entries involved, Export them.

Maybe though you'd be better off with a product to help your notebook handle
multiple network setups.
<http://nitecruzr.blogspot.com/2005/05/have-laptop-will-travel.html>
 
G

Guest

Nicolas,

If you want to know what registry keys are being changed when you activate ICS,
get Process Explorer and Regmon (both free) from SysInternals.
<http://www.sysinternals.com/ntw2k/freeware/procexp.shtml>
<http://www.sysinternals.com/ntw2k/source/regmon.shtml>

# Start Process Explorer.
# Start the ICS setup process. Use Process Explorer to tell you the PID of the
ICS setup process.
# Start Regmon. Set Regmon to filter on the PID of the ICS setup process.
# Execute the ICS setup process. Look at the output from Regmon.
# Once you identify the registry entries involved, Export them.

Maybe though you'd be better off with a product to help your notebook handle
multiple network setups.
<http://nitecruzr.blogspot.com/2005/05/have-laptop-will-travel.html>

Thanks for those tools, i'll try now...

To correct my mistakes, the notebook has no problem at all. It is the
gateway who has got the problem (which i use as a local & internet http
server). Then all connections are broken until I reconfigure the gateway (and
just by enabling ICS).

Strange! Isn't it ?
 
C

Chuck

Thanks for those tools, i'll try now...

To correct my mistakes, the notebook has no problem at all. It is the
gateway who has got the problem (which i use as a local & internet http
server). Then all connections are broken until I reconfigure the gateway (and
just by enabling ICS).

Strange! Isn't it ?

Nicolas,

Yes, it's strange. Maybe if you can post "ipconfig /all" from the computer with
the problem, both when connected to the Internet (with proper settings), and
when disconnected from the Internet (with broken settings).

Maybe describing why you are disconnecting the gateway from the network would
help too. Typically, if you're going to use a computer as a gateway, you have
to leave the computer in place. That's one of the disadvantages of using ICS,
and one reason why I always recommend using a NAT router instead.
<http://nitecruzr.blogspot.com/2005/05/ics-is-ok-but-you-can-do-better.html>
 
G

Guest

ipconfig when connection si ok

Carte Ethernet Connexion au réseau local 2:

Suffixe DNS propre à la connexion : MSHOME.NET
Adresse IP. . . . . . . . . . . . : 192.168.0.1
Masque de sous-réseau . . . . . . : 255.255.255.0
Passerelle par défaut . . . . . . :

Carte PPP Wanadoo :

Suffixe DNS propre à la connexion :
Adresse IP. . . . . . . . . . . . : 83.202.231.12
Masque de sous-réseau . . . . . . : 255.255.255.255
Passerelle par défaut . . . . . . : 83.202.231.12

And after I disconnect Internet (because of my limited DSL connection ):
Carte Ethernet Connexion au réseau local 2:

Suffixe DNS propre à la connexion : MSHOME.NET
Adresse IP. . . . . . . . . . . . : 0.0.0.0
Masque de sous-réseau . . . . . . : 0.0.0.0
Passerelle par défaut . . . . . . :

Thanks for your help
 
Ad

Advertisements

C

Chuck

ipconfig when connection si ok

Carte Ethernet Connexion au réseau local 2:

Suffixe DNS propre à la connexion : MSHOME.NET
Adresse IP. . . . . . . . . . . . : 192.168.0.1
Masque de sous-réseau . . . . . . : 255.255.255.0
Passerelle par défaut . . . . . . :

Carte PPP Wanadoo :

Suffixe DNS propre à la connexion :
Adresse IP. . . . . . . . . . . . : 83.202.231.12
Masque de sous-réseau . . . . . . : 255.255.255.255
Passerelle par défaut . . . . . . : 83.202.231.12

And after I disconnect Internet (because of my limited DSL connection ):
Carte Ethernet Connexion au réseau local 2:

Suffixe DNS propre à la connexion : MSHOME.NET
Adresse IP. . . . . . . . . . . . : 0.0.0.0
Masque de sous-réseau . . . . . . : 0.0.0.0
Passerelle par défaut . . . . . . :

Thanks for your help

Nicolas,

Maybe "ipconfig /all" instead of "ipconfig" would give more detail.

But why are you removing the gateway? That's the disadvantage of ICS - the
gateway has to be in place and turned on whenever you want to use the client.
Is there another solution possible?
 
Ad

Advertisements

G

Guest

I have to disconnect from the internet because of connection cost. I
subsribed to a limited upload formula, and I share some ressources with other
computers. I'm currently unumployed :-( and can't pay for unlimited internet
access. That's why I disconnect sometimes.. As my modem uses universal serial
bus, I can't plug more than one computer to the device.

The PC (the one which is linked to phone line) stays turned-on after
Internet disconnect, for other works, and the notebook stays connected to the
PC for file/print sharing... And I don't know other low cost solution at the
moment... (any idea ?)

Maybe there is a relation, maybe not, but sometimes, the notebook gets a
fatal error with 'svchost.exe' (user: Network Service). I see the message
only when restarting the notebook, but the event viewer seems to analyse it
at Windows shutdown (when service is stopped).
Maybe there is a problem with the notebook's Windows settings...

What do you think about that ?
--------------------------------------------------------------------------
Here is ipconfig/all when connected :
Configuration IP de Windows

Nom de l'hôte . . . . . . . . . . : sigma-n1fty
Suffixe DNS principal . . . . . . :
Type de noud . . . . . . . . . . : Hybride
Routage IP activé . . . . . . . . : Oui
Proxy WINS activé . . . . . . . . : Non

Carte Ethernet Connexion au réseau local 2:

Suffixe DNS propre à la connexion : MSHOME.NET
Description . . . . . . . . . . . : Carte réseau Fast Ethernet PCI
Realt
ek RTL8139 Family #2
Adresse physique . . . . . . . . .: 00-50-FC-A3-34-AD
DHCP activé. . . . . . . . . . . : Non
Adresse IP. . . . . . . . . . . . : 192.168.0.1
Masque de sous-réseau . . . . . . : 255.255.255.0
Passerelle par défaut . . . . . . :
Serveur WINS principal. . . . . . : 192.168.0.1

Carte PPP Wanadoo :

Suffixe DNS propre à la connexion :
Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
Adresse physique . . . . . . . . .: 00-53-45-00-00-00
DHCP activé. . . . . . . . . . . : Non
Adresse IP. . . . . . . . . . . . : 83.202.231.159
Masque de sous-réseau . . . . . . : 255.255.255.255
Passerelle par défaut . . . . . . : 83.202.231.159
Serveurs DNS . . . . . . . . . . : 80.10.246.1
80.10.246.132
NetBIOS sur TCPIP. . . . . . . . : Désactivé
------------------------------------------------------------------
And here is ipconfig/all after disconnect:
Configuration IP de Windows

Nom de l'hôte . . . . . . . . . . : sigma-n1fty
Suffixe DNS principal . . . . . . :
Type de noud . . . . . . . . . . : Hybride
Routage IP activé . . . . . . . . : Oui
Proxy WINS activé . . . . . . . . : Non

Carte Ethernet Connexion au réseau local 2:

Suffixe DNS propre à la connexion : MSHOME.NET
Description . . . . . . . . . . . : Carte réseau Fast Ethernet PCI
Realt
ek RTL8139 Family #2
Adresse physique . . . . . . . . .: 00-50-FC-A3-34-AD
DHCP activé. . . . . . . . . . . : Oui
Adresse IP. . . . . . . . . . . . : 0.0.0.0
Masque de sous-réseau . . . . . . : 0.0.0.0
Passerelle par défaut . . . . . . :
Serveur WINS principal. . . . . . :
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Top